Add test-linux sh

Makefile

@@ -9,3 +9,6 @@ lib-lint:
 
 pod-release:
 	bundle exec pod trunk push
+
+test-linux:
+	sh scripts/test-linux.sh

scripts/test-linux.sh

@@ -0,0 +1,34 @@
+# !/bin/bash
+
+set -e
+
+if [[ `uname` == "Darwin" ]]; then
+  if [[ -z `which docker-machine 2>/dev/null` || -z `which virtualbox 2>/dev/null` ]] ; then
+    echo "Install docker-machine and virtualbox ahead."
+    exit -1
+  fi
+
+  if [[ ! $(docker info 2>/dev/null) ]]; then
+    echo "Is Docker running?"
+    exit -1
+  fi
+
+  DOCKER_HOST_NAME=com.ryo.DifferenceKit.test
+  WORKING_DIR=$(pwd)
+
+  echo "Starting to running tests on Linux by Docker..."
+  docker-machine create --driver virtualbox $DOCKER_HOST_NAME || true
+  docker run -v $WORKING_DIR:$WORKING_DIR -w $WORKING_DIR -it --privileged swift:latest bash -c "$0" || true
+  docker-machine stop $DOCKER_HOST_NAME || true
+  docker-machine rm -f $DOCKER_HOST_NAME || true
+  echo "Finish"
+
+elif [[ `uname` == "Linux" ]]; then
+  swift build
+  swift test
+
+else
+  echo "Unsupported OS (`uname`)"
+  exit -1
+
+fi